Warm, Dry Conditions Give Way to Potential Midweek Storm in Southern Oregon

MEDFORD, Ore. (Mar. 27, 2026) — Unseasonably warm and dry conditions are expected to persist across southern Oregon through the weekend as a thermal trough remains in place, forecasters said, before a more complex weather pattern brings a sharp cooldown and the potential for a stronger storm system by midweek.

Temperatures are forecast to climb Friday, with inland valleys west of the Cascade Range reaching the mid- to upper 70s. Along the southern Oregon coast, including areas near Brookings and Gold Beach, highs are expected to remain cooler, in the upper 60s.

The warming trend is being driven by a thermal trough moving inland, accompanied by offshore winds and very dry air at lower elevations. Conditions are expected to remain similar into Saturday, though temperatures may dip slightly. Coastal areas, particularly north of Cape Blanco, could see periods of cloud cover and onshore flow.

Forecasters say a shift in the weather pattern will begin Sunday night as an upper-level trough attempts to move into the region. However, its impact is expected to be limited due to resistance from a ridge of high pressure and persistent east flow over California. As a result, only a weak front is expected to pass through, bringing little precipitation.

Any rainfall associated with the system is expected to be brief and light, moving through quickly and exiting by Monday morning. Behind the front, temperatures are expected to drop sharply, with snow levels falling from around 4,000 feet to near 1,000 feet. Despite the colder air, limited moisture will likely prevent significant snowfall, with only light flurries possible in higher elevations.

Dry conditions are expected to return briefly Monday afternoon as the thermal trough strengthens along the south coast and into California. Another system, a weak warm front, is forecast to arrive Tuesday, bringing minimal precipitation and a rebound in temperatures along with rising snow levels.

Attention then turns to a potentially stronger system expected to impact the region Wednesday into Thursday. Forecast models indicate a deep low-pressure system moving in from the Gulf of Alaska, with a surface low that could come ashore anywhere from near the mouth of the Columbia River to southern British Columbia.

While there is still uncertainty in the storm’s exact track and strength, forecasters say the system is likely to bring widespread rain, gusty winds, and mountain snow, with snow levels generally between 3,000 and 4,000 feet. The strength of the winds, especially in southern Oregon and far northern California, will depend on how far south the system tracks and how much it intensifies.

Areas that could see the greatest impacts include coastal communities, the Shasta and Scott valleys, the southern Rogue Valley, and parts of inland eastern Oregon. Travelers over higher elevations, including passes through the Cascades, are advised to monitor forecasts and prepare for potentially hazardous conditions.

Following the midweek storm, cooler temperatures and scattered showers are expected to persist into late week. Longer-range outlooks suggest a return to warmer and drier conditions next weekend, though some uncertainty remains as forecasters continue to monitor an active weather pattern.